To sum up here in the forum. OP is unsatisfied that for every sketch used to position a hole, the hole tool in PartDesign resets the settings and therefore the hole parameters have to be respecified.
I agree that the exercise can be tedious.
I see a few possible solutions myself:
1. As OP suggested, the hole tool remembers last settings.
2. To me the workflow would be to create all sketches and then create holes from all of them. So perhaps the ability to use the hole tool on multiple sketches at once would eliminate the need to even conjure up the tool more than once.
3. If you already know that your part will use principally a certain set of holes (i.e. want to standardize your part to use M4 screws wherever possible), a "default" hole settings or "save as default" button would do the trick very nicely. Then the hole tool would have a list of selected sketches and an apply button like most other transform tools (chamfer, fillet...etc).
Note: it is true that the hole tool needs some love and this has been acknowledged recently even by the maker of the tool. But it seems that at the moment the latests suggestions were left in standby which means maybe someone else should support the hole tool development effort to help its original creator.